The Duration Calculator calculates the number of days, months and years between two dates.

Time Calculator: Duration Between Two Times and Dates How many years, months, days, hours, minutes, and seconds are there between two moments in time?

Days Calculator: Days Between Two Dates How many days, months, and years are there between two dates?

Business Days Calculator counts the number of days between two dates, with the option of excluding weekends and public holidays.

Create a Countdown Timer that counts down in seconds, minutes, hours and days to any date, with time zone support. It also counts up from a past date.

Add or subtract any number of days to/from a date, taking into account public holidays in your country and weekends.

Date Calculator API Find a specific business date and calculate the working days in a given period.

Weekday Calculator: What Day Is It? What day of the week was I born? Enter any date to find out the weekday and other fun facts.

Explore our online timers and countdown tools. Create your own countdown or use our pre-made countdowns to popular events.

Countdown to Dec 20, 2025. Showing days, hours, minutes and seconds ticking down to 0